The story of Ken Balcomb, a former U.S. Navy officer who solved a tragic mystery involving a mass stranding of whales in the Bahamas, and changed the way we understand our impact on the ocean. In the darkness of the sea, whales depend on sound to mate, find food, migrate, raise their young and defend against predators. Over the last century, however, human activity has radically transformed the ocean's delicate acoustic habitat, challenging the ability of whales and other marine life to prosper, and ultimately to survive. Sonic Seaoffers solutions and hope for a quieter ocean, and underscores that the ocean's destiny is inextricably bound with our own.